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A Controller of Site safety or COSS is anyone qualified because of the Network Rail to make sure safe apply for operate taking place on or in close proximity to railway tracks and infrastructure. Their Key purpose should be to arrange a secure technique of work to guard workers from trains and mechanised vehicles.

The preferred Risk-free systems of working where by the team are protected against line open to educate movements, possibly by blocking some or all lines to visitors or managing the gap the team is through the monitor (termed Safeguarded/Fenced/Separated areas as a way of consideration). This technique was formerly named a Green Zone. This is actually the most secure method of Doing work because of the upper risks with trains relocating at velocity, Even though lots of incidents nonetheless transpire inside blocks.

Open Line Performing (previously referred to as Purple Zone) suggests the strains are open up to train movements; This can be viewed as more risky than Safeguarded/Fenced/Divided areas, and is particularly prevented in the rail market in which practicable.

The COSS is to blame for the protection of all the group and is also matter to prosecution need to an individual be killed or hurt by their negligence.

To be a COSS, another person must have served a suitable time period pts jobs in london around the railways and undertake a 5-day program. That is then followed by a duration of mentoring by a highly trained COSS and afterwards independent normal assessments in order that the subject is skilled to undertake their function safely and securely and effectively.

The principles all-around executing the purpose of the COSS are stated inside the Rule Book [one] a list of files issued to trace employees detailing their responsibilities.

A COSS is distinguishable on web-site by wearing a blue armlet within the left arm or upper human body on which the term "COSS" is printed in white textual content.

Beforehand, the COSS was known as the Person In control of Operate/Possession, or PICOW/PICOP.